Baby carriage seat



FIG. 1 is a front view of the baby carriage seat facing in the forward direction, showing our new design.

FIG. 2 is a rear view of the baby carriage seat.

FIG. 3 is a side view of the baby carriage seat.

FIG. 4 is another side view of the baby carriage seat; and,

FIG. 5 is a perspective view showing a side, front and top of the baby carriage seat.

The broken lines in the figures form no part of the claimed design. 

The ornamental design for a baby carriage seat, as shown and described. 